18% Automatic Gratuity

I just received an email from Disney Dining Experience. This is the last paragraph:

We would also like to inform you that the Walt Disney World Resort will be implementing an across property policy change regarding gratuity at all food and beverage locations. Effective January 1, 2008, 18% gratuity will be added to all transactions, regardless of party size. Thank you for your continued support.

It sounds as though this is every restaurant regardless of DDE. I can figure out why they are doing it but for a number of reasons it doesn't sit well with me. I suspect the firestorm will start pretty quick.